Part 2 Revision oneshot EMI for NCERT/NEET Motional EMF,Energy consideration,Inductor and Inductance
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A ceiling fan having 3 blades of length 80 cm each
is rotating with an angular velocity of 1200 rpm.
The magnetic field of earth in that region is 0.5 G
and angle of dip is 30º. The emf induced across the
blades is N*pi* 10^-5. The value of N is _____ .
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Frequently Asked Questions
How to prepare for IIT-JEE Physics?
To prepare for IIT-JEE Physics, focus on understanding concepts rather than memorizing formulas. Practice solving a variety of problems, especially previous years’ questions. Create a study schedule that covers all topics, with extra time for challenging areas like Mechanics and Electromagnetism. Regular revision and mock tests are essential for success.
What is the difference between elastic and inelastic collisions?
In elastic collisions, both momentum and kinetic energy are conserved. Examples include collisions between hard billiard balls. In inelastic collisions, only momentum is conserved while some kinetic energy is converted to other forms like heat or sound. Most real-world collisions are inelastic to some degree.
How does electromagnetic induction work?
Electromagnetic induction is the process of generating an electromotive force (EMF) in a conductor by changing the magnetic field through it. According to Faradays Law, the induced EMF is proportional to the rate of change of magnetic flux. This principle is the basis for generators, transformers, and inductors, which are essential components in electrical power systems.